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Audi A3 Sportback vs Mazda 3 Sedan comparison

Compare performance (400 HP vs 186 HP), boot space and price (27,000 £ vs 25,000 £ ) at a glance. Find out which car is the better choice for you – Audi A3 Sportback or Mazda 3 Sedan?

Audi A3 Sportback vs Mazda 3 Sedan: Key differences

Audi A3 Sportback

3.9 (1 Reviews)
rate
  • considerably more power
  • clearly more efficient
  • clearly quicker 0–100 km/h
  • only slightly lighter

Mazda 3 Sedan

4.7 (1 Reviews)
rate
  • very slightly cheaper
  • a bit more trunk space

Here’s where it gets real: The technical differences in detail

A3 Sportback

Costs and Efficiency:

Price and efficiency are often the first things buyers look at. Here it becomes clear which model has the long-term edge – whether at the pump, the plug, or in purchase price.

Mazda 3 Sedan is very slightly cheaper – starting at 25,000 £ , while the Audi A3 Sportback costs 27,000 £ . That’s a price difference of around 2,023 £.

Fuel consumption also shows a difference: the Audi A3 Sportback uses 1.1 L/100km and is clearly more efficient than the Mazda 3 Sedan with 5.5 L/100km. The difference is about 4.4 L/100km.

3 Sedan

Engine and Performance:

Power, torque and acceleration say a lot about how a car feels on the road. This is where you see which model delivers more driving dynamics.

When it comes to engine power, the Audi A3 Sportback offers considerably more power – delivering 400 HP compared to 186 HP. That’s roughly 214 HP more horsepower.

When accelerating from 0 to 100 km/h, the Audi A3 Sportback is clearly quicker – completing the sprint in 3.8 s, while the Mazda 3 Sedan takes 8.1 s. That’s about 4.3 s quicker.

There’s also a difference in torque: the Audi A3 Sportback delivers considerably more torque with 500 Nm compared to 240 Nm. That’s about 260 Nm more.

A3 Sportback

Space and Everyday Use:

Whether family car or daily driver – which one offers more room, flexibility and comfort?

Both vehicles offer seating for 5 people.

In terms of curb weight, Audi A3 Sportback is only slightly lighter – 1,360 kg compared to 1,420 kg. The difference is around 60 kg.

Looking at boot space, the Mazda 3 Sedan offers a bit more boot space – 450 L compared to 380 L. That’s a difference of about 70 L.

When it comes to payload, the Mazda 3 Sedan carries barely more – 481 kg compared to 480 kg. That’s a difference of about 1 kg.

Who wins the race in the data check?

The Audi A3 Sportback is decisively ahead in the objective data comparison.
This result only shows which model scores more points on paper – not which of the two cars feels right for you.

from £27,000
A3 Sportback

Audi A3 Sportback

  • Engine Type : Petrol, Petrol MHEV, Diesel, Plugin Hybrid
  • Transmission : Manuel, Automatic
  • Drive Type : Front-Wheel Drive, All-Wheel Drive
  • Power HP : 116 - 400 HP
  • Consumption L/100km : 1.1 - 9.3 L/100km
  • Electric Range : 134 - 141 km
details

Frequently compared as well

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Mazda 3 Sedan

Costs and Consumption
View detailed analysis

Engine and Performance
View detailed analysis

Dimensions and Body
View detailed analysis

Audi A3 Sportback

The Audi A3 Sportback wraps premium materials and crisp German design into a practical hatchback package that makes daily driving feel smart rather than showy. It’s nimble in the city, composed on longer trips, and carries just enough swagger to satisfy buyers who want quality without shouting about it.

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Reviews Audi A3 Sportback

3.9 (1 Reviews)
rate

No reviews yet. Share your experience and help others decide.

Mazda 3 Sedan

The Mazda 3 Sedan dresses like a compact premium car, with sculpted lines and an interior that punches well above its class. It rewards drivers with eager handling and a composed, comfortable ride that turns routine runs into something a bit more enjoyable — proof that style and substance can share the same key.

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Reviews Mazda 3 Sedan

4.7 (1 Reviews)
rate

No reviews yet. Share your experience and help others decide.

Frequently compared as well

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Mazda 3 Sedan

Costs and Consumption
Price
27,000 - 56,600 £
Price
25,000 - 34,200 £
Consumption L/100km
1.1 - 9.3 L/100km
Consumption L/100km
5.5 - 6.1 L/100km
Consumption kWh/100km
-
Consumption kWh/100km
-
Electric Range
134 - 141 km
Electric Range
-
Battery Capacity
19.7 kWh
Battery Capacity
-
co2
25 - 211 g/km
co2
123 - 135 g/km
Fuel tank capacity
40 L
Fuel tank capacity
-

Dimensions and Body
Body Type
Hatchback
Body Type
Sedan
Seats
5
Seats
5
Doors
5
Doors
-
Curb weight
1,360 - 1,685 kg
Curb weight
1,420 - 1,492 kg
Trunk capacity
280 - 380 L
Trunk capacity
450 L
Length
4,352 - 4,353 mm
Length
-
Width
1,816 - 1,851 mm
Width
1,795 mm
Height
1,441 - 1,470 mm
Height
-
Max trunk capacity
1,100 L
Max trunk capacity
-
Payload
410 - 480 kg
Payload
467 - 481 kg

Engine and Performance
Engine Type
Petrol, Petrol MHEV, Diesel, Plugin Hybrid
Engine Type
Petrol MHEV
Transmission
Manuel, Automatic
Transmission
Manuel, Automatic
Transmission Detail
Manual Gearbox, Dual-Clutch Automatic
Transmission Detail
Manual Gearbox, Automatic Gearbox
Drive Type
Front-Wheel Drive, All-Wheel Drive
Drive Type
Front-Wheel Drive
Power HP
116 - 400 HP
Power HP
140 - 186 HP
Acceleration 0-100km/h
3.8 - 10.1 s
Acceleration 0-100km/h
8.1 - 9.8 s
Max Speed
225 - 237 km/h
Max Speed
-
Torque
220 - 500 Nm
Torque
238 - 240 Nm
Number of Cylinders
4 - 5
Number of Cylinders
4
Power kW
85 - 294 kW
Power kW
103 - 137 kW
Engine capacity
1,498 - 2,480 cm3
Engine capacity
1,998 - 2,488 cm3

General
Model Year
2,025
Model Year
2,025
CO2 Efficiency Class
D, F, E, G, B
CO2 Efficiency Class
D
Brand
Audi
Brand
Mazda
What drive types are available for the Audi A3 Sportback?

The Audi A3 Sportback is available as Front-Wheel Drive or All-Wheel Drive.

DriveDuel uses data analysis and artificial intelligence to evaluate vehicle data and create content. Content is regularly reviewed and improved. The displayed prices are estimates based on German list prices, adjusted to the respective country’s VAT. Country-specific registration taxes are not included. This information is not legally binding.